This Smooth Side Canadian Grain Hopper CP Rail 388500 is Ready to Roll On Your HO Scale Layout from Bachmann s Silver Series Features . HO CP Grain Hopper. Weighted and ready to roll on any HO scale layout. Magnetically operated frame mounted E Z Mate knuckle couplers. Authentically molded Barber 100 ton roller bearing trucks in black Celcon material. Blackened machined metal wheels with RP25 contours. Non magnetic blackened brass axles with needlepoint bearings. Realistically molded brakewheel. Four bay underframe with detailed outlet gates